CN209282329U - A kind of hot melt adhesive for takeup type battery core - Google Patents
A kind of hot melt adhesive for takeup type battery core Download PDFInfo
- Publication number
- CN209282329U CN209282329U CN201822276401.6U CN201822276401U CN209282329U CN 209282329 U CN209282329 U CN 209282329U CN 201822276401 U CN201822276401 U CN 201822276401U CN 209282329 U CN209282329 U CN 209282329U
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- Prior art keywords
- melt adhesive
- hot melt
- layer
- rubberizing
- takeup type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model belongs to technical field of lithium-ion battery, more particularly to a kind of hot melt adhesive for takeup type battery core, including the rubberizing ontology for bonding battery roll core and aluminum plastic film, the rubberizing ontology includes the first adhered layer being bonded with the aluminum plastic film, setting layer and the second adhered layer being bonded with the battery roll core, first adhered layer and second adhered layer are attached at the two sides of the setting layer respectively, the rubberizing ontology offers multiple through-holes, the through-hole uniform array is in the rubberizing ontology, the percent thermal shrinkage of the setting layer is 0.1% ~ 1%, the utility model passes through setting through-hole, the bubble that can effectively generate hot melt adhesive when pasting is discharged, simultaneously, it can also prevent hot melt adhesive from gauffer occurs, in addition, setting layer can also effectively inhibit the contraction of battery diaphragm, it greatlys improve The excellent rate and security performance of battery.
Description
Technical field
The utility model belongs to technical field of lithium-ion battery, and in particular to a kind of hot melt for takeup type battery core
Glue.
Background technique
Lithium battery is widely used as the green high-efficient energy of a new generation, but with the continuous hair of technology
Exhibition, people also increasingly pay close attention to the security performance of lithium battery.
It, can be according to different production targets, in battery winding in the film-making winding production process of polymer Li-ion battery
The different parts of core stick the rubberizing of different function to ensure the security performance of battery, and therefore, the quality of rubberizing is particularly significant, especially
It is flatness of the rubberizing in fitting, if if there is no guarantee that, it will bring some potential safety problems to battery.
When packaged, one layer of hot melt adhesive is arranged in battery roll core usually between battery roll core and aluminum plastic film, in order to
Prevent lithium battery when in use due to collide make positive/negative plate occur relative displacement and lead to the problem of short circuit or open circuit, meanwhile,
Also due to when work is heated certain contraction can occur for the diaphragm in battery core, hot melt adhesive can be prevented just due to diaphragm retracts
Positive/negative plate is caused to contact and burn out battery core, existing hot melt adhesive is mainly closed single layer glue sheet, in fitting by whole
Piece fits together, but not can avoid during fitting and generate bubble because being pressed into air, and film is easy to happen wrinkle
Pleat causes the flatness of hot melt adhesive lower, has seriously affected the encapsulation of battery, or even there is also certain peaces to the use of battery
Full hidden danger.Although, can be by improving manually operated requirement come the problem of reducing bubble during manual rubberizing, companion
With and come be cost of labor increase, rubberizing effect is also unstable.
In view of this, it is necessory to provide a kind of scheme that can improve the above problem.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and provide a kind of for takeup type battery core
The bubble generated during rubberizing can be discharged, in addition, can also inhibit the contraction of diaphragm, greatly increase by hot melt adhesive, the hot melt adhesive
The strong safety of battery.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of hot melt adhesive for takeup type battery core, including the rubberizing sheet for bonding battery roll core and aluminum plastic film
Body, the rubberizing ontology include the first adhered layer being bonded with the aluminum plastic film, setting layer and are bonded with the battery roll core
Second adhered layer, first adhered layer and second adhered layer are attached at the two sides of the setting layer, the rubberizing respectively
Ontology offers multiple through-holes, the through-hole uniform array in the rubberizing ontology, the percent thermal shrinkage of the setting layer is 0.1% ~
1%。
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the diameter r of the through-hole
For 0.1mm ~ 3mm.Through-hole can in this way will not be difficult to because of too small, will not because of cross ambassador's bonding area reduce from
And influence stickup ability.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the diameter r of the through-hole
For 0.5mm ~ 1mm.The processing effect of sticking effect and through-hole can be made to reach best in this way.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the spacing d of the through-hole
For 0.5mm ~ 5mm.It can prevent the spacing of through-hole from making bonding area reduce to influence adherence force because too small in this way, while can also prevent
Only exhaust is influenced since spacing is excessive.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the spacing d of the through-hole
For 1mm ~ 3mm.Sticking effect and exhaust effect can be made to reach best in this way.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, first adhered layer
With a thickness of 0.2mm ~ 0.5mm.The thickness range can make the first adhered layer not influence its viscosity because of too thin, will not be because of
It is too thick and influence encapsulation.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the thickness of the setting layer
For 0.5mm ~ 2mm.The thickness range can make setting layer not influence its supporting role because of too thin, will not because of too thick and
Influence encapsulation.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, second adhered layer
With a thickness of 0.2mm ~ 0.5mm.The thickness range can make the second adhered layer not influence its viscosity because of too thin, will not be because of
It is too thick and influence encapsulation.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, first adhered layer and
Second adhered layer is PUR hot melt adhesive, EVA hot-melt adhesive or PE hot melt adhesive.
As a kind of improvement of the hot melt adhesive described in the utility model for takeup type battery core, the setting layer is PET
Film or PE film.
The utility model has the beneficial effects that: compared with prior art, the utility model passes through setting through-hole, Ke Yiyou
The bubble that effect ground generates hot melt adhesive when pasting is discharged, simultaneously, additionally it is possible to prevent hot melt adhesive from gauffer occurs, in addition, setting layer
The contraction that battery diaphragm can also be effectively inhibited greatly improves the excellent rate and security performance of battery.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment and its explanation of the utility model are not constituted for explaining the utility model to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is one of the structural schematic diagram of the utility model；
Fig. 2 is the second structural representation of the utility model；
Fig. 3 is the stickup schematic diagram of the utility model；
Wherein, 0- battery roll core；00- aluminum plastic film；1- rubberizing ontology；The first adhered layer of 11-；12- setting layer；13- second
Adhered layer；2- through-hole.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within an acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as level " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
The utility model is described in further detail below in conjunction with attached drawing, but not as the restriction to the utility model.
As shown in Fig. 1 ~ 3, a kind of hot melt adhesive for takeup type battery core, including be used for battery roll core 0 and aluminum plastic film 00
The rubberizing ontology 1 bonded, rubberizing ontology 1 include the first adhered layer 11 being bonded with aluminum plastic film 00, setting layer 12 and with electricity
The second adhered layer 13 that pond core 0 is bonded, the first adhered layer 11 and the second adhered layer 13 are attached at the two sides of setting layer 12 respectively,
Rubberizing ontology 1 offers multiple through-holes 2,2 uniform array of through-hole in rubberizing ontology 1, the percent thermal shrinkage of setting layer 12 is 0.1% ~
1%, by the way that through-hole 2 can the unavoidable bubble infiltered be driven out of during fitting by rubberizing ontology 1, prevent gauffer
Phenomenon, in addition, since battery diaphragm can also have a certain proportion of contraction, about 5% ~ 10% with temperature influence when work is heated
(at a temperature of 90 ° ~ 100 °), and the shrinkage rates of stock mould 12 are smaller than battery diaphragm, therefore can inhibit battery diaphragm
It shrinks, prevents from causing positive and negative anodes short-circuit because of diaphragm retracts, improve battery security.
Preferably, the diameter r of through-hole 2 is 0.1mm ~ 3mm, which can be such that through-hole 2 is not difficult to because of too small,
It will not reduce because of ambassador's bonding area is crossed to influence the stickup ability of rubberizing ontology 1.
Preferably, the diameter r of through-hole 2 is 0.5mm ~ 1mm, which can be such that sticking effect and the processing effect of through-hole 2 reaches
To best.
Preferably, the spacing d of through-hole 2 is 0.5mm ~ 5mm, which can prevent the spacing of through-hole 2 from making adhesive surface because too small
Product reduces to influence adherence force, while can also prevent from influencing exhaust since spacing is excessive.
Preferably, the spacing d of through-hole 2 is 1mm ~ 3mm, which can make sticking effect and exhaust effect reach best.
Preferably, the thickness of the first adhered layer 11 and the second adhered layer 13 be 0.2mm ~ 0.5mm,.The thickness range energy
So that the first adhered layer 11 and the second adhered layer 13 is not influenced its viscosity because of too thin, envelope will not be influenced because of too thick
Dress.
Preferably, setting layer 12 with a thickness of 0.5mm ~ 2mm.The thickness range can make setting layer 12 will not because of too thin and
Its supporting role is influenced, encapsulation will not be influenced because of too thick.
Preferably, the first adhered layer 11 and the second adhered layer 13 are PUR hot melt adhesive, EVA hot-melt adhesive or PE hot melt adhesive.
Preferably, setting layer 12 is PET film or PE film.
In actual operation, first according to demand, it is ready to meet the hot melt adhesive of thickness and material, then in rubberizing ontology
Preprocessing is carried out on 1, opens up through-hole 2, guarantees that the size of through-hole 2 is consistent with spacing, then by the length adjustment of automatic rubber-cutting machine
To the length of hot melt adhesive demand, hot melt adhesive is cut into corresponding length, finally, it is corresponding that melt viscosity is affixed on battery roll core 0
Position on.
Several preferred embodiments of the utility model have shown and described in above description, but as previously described, it should be understood that
The utility model is not limited to forms disclosed herein, and is not to be taken as the exclusion to other embodiments, and can be used for
Other combinations, modifications, and environments, and above-mentioned introduction or correlation can be passed through within the scope of the inventive concept described herein
The technology or knowledge in field are modified.And changes and modifications made by those skilled in the art do not depart from the spirit of the utility model
And range, then it all should be in the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of hot melt adhesive for takeup type battery core, including be used to bond battery roll core (0) and aluminum plastic film (00)
Rubberizing ontology (1), it is characterised in that: the rubberizing ontology (1) includes the first adhered layer being bonded with the aluminum plastic film (00)
(11), setting layer (12) and the second adhered layer (13) being bonded with the battery roll core (0), first adhered layer (11) and institute
The two sides that the second adhered layer (13) is attached at the setting layer (12) respectively is stated, the rubberizing ontology (1) offers multiple through-holes
(2), for through-hole (2) uniform array in the rubberizing ontology (1), the percent thermal shrinkage of the setting layer (12) is 0.1% ~ 1%.
2. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: the diameter r of the through-hole (2)
For 0.1mm ~ 3mm.
3. the hot melt adhesive according to claim 2 for takeup type battery core, it is characterised in that: the diameter r of the through-hole (2)
For 0.5mm ~ 1mm.
4. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: the spacing d of the through-hole (2)
For 0.5mm ~ 5mm.
5. the hot melt adhesive according to claim 4 for takeup type battery core, it is characterised in that: the spacing d of the through-hole (2)
For 1mm ~ 3mm.
6. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: first adhered layer (11)
With a thickness of 0.2mm ~ 0.5mm.
7. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: the thickness of the setting layer (12)
Degree is 0.5mm ~ 2mm.
8. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: second adhered layer (13)
With a thickness of 0.2mm ~ 0.5mm.
9. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: first adhered layer (11)
It is PUR hot melt adhesive, EVA hot-melt adhesive or PE hot melt adhesive with second adhered layer (13).
10. the hot melt adhesive according to claim 1 for takeup type battery core, it is characterised in that: the setting layer (12) is
PET film or PE film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276401.6U CN209282329U (en) | 2018-12-29 | 2018-12-29 | A kind of hot melt adhesive for takeup type battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276401.6U CN209282329U (en) | 2018-12-29 | 2018-12-29 | A kind of hot melt adhesive for takeup type battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282329U true CN209282329U (en) | 2019-08-20 |
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ID=67608407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822276401.6U Active CN209282329U (en) | 2018-12-29 | 2018-12-29 | A kind of hot melt adhesive for takeup type battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209282329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753408A (en) * | 2019-10-09 | 2020-02-04 | 李高升 | Graphene heating plate and manufacturing method thereof |
-
2018
- 2018-12-29 CN CN201822276401.6U patent/CN209282329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753408A (en) * | 2019-10-09 | 2020-02-04 | 李高升 | Graphene heating plate and manufacturing method thereof |
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